diff --git a/metal/MobileNetDemo/MobileNetDemo/MobileNet.swift b/metal/MobileNetDemo/MobileNetDemo/MobileNet.swift
index 9a50f3db8d7d1b57853d5ba6893e4af14879173c..5904af7881a7f3ffffc06956ef4ade9893420cd9 100644
--- a/metal/MobileNetDemo/MobileNetDemo/MobileNet.swift
+++ b/metal/MobileNetDemo/MobileNetDemo/MobileNet.swift
@@ -42,8 +42,9 @@ public class MobileNet: Net{
   
   let labels = PreWords.init(fileName: "synset")
   
-  override public func resultStr(res: ResultHolder) -> String {
-    let resPointer = res.result
+  override public func resultStr(res: [ResultHolder]) -> String {
+    let firstRes = res[0]
+    let resPointer = firstRes.result
     var s: [String] = []
     (0..<res.capacity).map { resPointer[$0] }.top(r: 5).enumerated().forEach{
       s.append(String(format: "%d: %@ (%3.2f%%)", $0 + 1, labels[$1.0], $1.1 * 100))
diff --git a/metal/paddle-mobile-demo/paddle-mobile-demo/Net/Genet.swift b/metal/paddle-mobile-demo/paddle-mobile-demo/Net/Genet.swift
index 04c61201f9b20ac244a8547f00ac19154b28430c..fd9ff8298a5b6b11182cd33caa5c8ce2f78c8e4d 100644
--- a/metal/paddle-mobile-demo/paddle-mobile-demo/Net/Genet.swift
+++ b/metal/paddle-mobile-demo/paddle-mobile-demo/Net/Genet.swift
@@ -41,8 +41,8 @@ public class Genet: Net {
     }
   }
   
-  override  public func resultStr(res: ResultHolder) -> String {
-    return " \(res.result[0]) ... "
+  override  public func resultStr(res: [ResultHolder]) -> String {
+    return " \(res[0].result[0]) ... "
   }
   
 }
diff --git a/metal/paddle-mobile-demo/paddle-mobile-demo/Net/MobileNet.swift b/metal/paddle-mobile-demo/paddle-mobile-demo/Net/MobileNet.swift
index 02fcbefe0b265a3f5898bb23956014183c95fc5e..e15befc6fb1ef7260c242e0d3fef48e0fa7b8844 100644
--- a/metal/paddle-mobile-demo/paddle-mobile-demo/Net/MobileNet.swift
+++ b/metal/paddle-mobile-demo/paddle-mobile-demo/Net/MobileNet.swift
@@ -43,8 +43,8 @@ public class MobileNet: Net{
   
   let labels = PreWords.init(fileName: "synset")
   
-  override public func resultStr(res: ResultHolder) -> String {
-    let resPointer = res.result
+  override public func resultStr(res: [ResultHolder]) -> String {
+    let resPointer = res[0].result
     var s: [String] = []
     (0..<res.capacity).map { resPointer[$0] }.top(r: 5).enumerated().forEach{
       s.append(String(format: "%d: %@ (%3.2f%%)", $0 + 1, labels[$1.0], $1.1 * 100))
diff --git a/metal/paddle-mobile-demo/paddle-mobile-demo/Net/MobileNetCombined.swift b/metal/paddle-mobile-demo/paddle-mobile-demo/Net/MobileNetCombined.swift
index 72f12c4044ff243ab39c56e0cb2cee5dc6d39be5..5210c8d308849cdcef854fdb834d0d37958e69b4 100644
--- a/metal/paddle-mobile-demo/paddle-mobile-demo/Net/MobileNetCombined.swift
+++ b/metal/paddle-mobile-demo/paddle-mobile-demo/Net/MobileNetCombined.swift
@@ -26,8 +26,8 @@ public class MobileNetCombined: Net {
 //    metalLibPath = Bundle.main.path(forResource: "PaddleMobileMetal", ofType: "metallib") ?! " can't be nil "
   }
   
-  override  public func resultStr(res: ResultHolder) -> String {
-    return " \(res.result[0]) ... "
+  override  public func resultStr(res: [ResultHolder]) -> String {
+    return " \(res[0].result[0]) ... "
   }
   
 }
diff --git a/metal/paddle-mobile-demo/paddle-mobile-demo/Net/MobileNetSSD.swift b/metal/paddle-mobile-demo/paddle-mobile-demo/Net/MobileNetSSD.swift
index 280a0507810a27c3d5b220789b74ef7358a5d215..41d2c82644b4b190dbf6f1e7c14029b8cad10897 100644
--- a/metal/paddle-mobile-demo/paddle-mobile-demo/Net/MobileNetSSD.swift
+++ b/metal/paddle-mobile-demo/paddle-mobile-demo/Net/MobileNetSSD.swift
@@ -45,11 +45,11 @@ public class MobileNet_ssd_hand: Net {
     }
   }
   
-  override public func resultStr(res: ResultHolder) -> String {
-    return " \(res)"
+  override public func resultStr(res: [ResultHolder]) -> String {
+    return " \(res[0])"
   }
   
-  override public func fetchResult(paddleMobileRes: GPUResultHolder) -> ResultHolder {
+  override public func fetchResult(paddleMobileRes: [GPUResultHolder]) -> [ResultHolder] {
 
 //    guard let interRes = paddleMobileRes.intermediateResults else {
 //      fatalError(" need have inter result ")
diff --git a/metal/paddle-mobile-demo/paddle-mobile-demo/Net/MobilenetSSD_AR.swift b/metal/paddle-mobile-demo/paddle-mobile-demo/Net/MobilenetSSD_AR.swift
index 3080dfb469774aa2aa9bd0ed58b9c5d03c52ca5f..60aa3adf0706f8bd2f7f958834fbdd64698ad319 100644
--- a/metal/paddle-mobile-demo/paddle-mobile-demo/Net/MobilenetSSD_AR.swift
+++ b/metal/paddle-mobile-demo/paddle-mobile-demo/Net/MobilenetSSD_AR.swift
@@ -39,11 +39,11 @@ public class MobileNet_ssd_AR: Net {
     }
   }
   
-  override public func resultStr(res: ResultHolder) -> String {
-    return " \(res.result[0])"
+  override public func resultStr(res: [ResultHolder]) -> String {
+    return " \(res[0].result[0])"
   }
   
-  override public func fetchResult(paddleMobileRes: GPUResultHolder) -> ResultHolder {
+  override public func fetchResult(paddleMobileRes: [GPUResultHolder]) -> [ResultHolder] {
     fatalError()
 //    guard let interRes = paddleMobileRes.intermediateResults else {
 //      fatalError(" need have inter result ")
diff --git a/metal/paddle-mobile-demo/paddle-mobile-demo/Net/YoloNet.swift b/metal/paddle-mobile-demo/paddle-mobile-demo/Net/YoloNet.swift
index 5017d3274da34459dfd26060e3c3598b76ba8d31..7aeabb0f730caf21292077158d5af37a5abdf6a8 100644
--- a/metal/paddle-mobile-demo/paddle-mobile-demo/Net/YoloNet.swift
+++ b/metal/paddle-mobile-demo/paddle-mobile-demo/Net/YoloNet.swift
@@ -27,8 +27,8 @@ public class YoloNet: Net {
 //    metalLibPath = Bundle.main.path(forResource: "PaddleMobileMetal", ofType: "metallib") ?! " can't be nil "
   }
 
-  override  public func resultStr(res: ResultHolder) -> String {
-    return " \(res.result[0]) ... "
+  override  public func resultStr(res: [ResultHolder]) -> String {
+    return " \(res[0].result[0]) ... "
   }
   
 }
diff --git a/metal/paddle-mobile-demo/paddle-mobile-demo/OCInterface/PaddleMobileGPU.h b/metal/paddle-mobile-demo/paddle-mobile-demo/OCInterface/PaddleMobileGPU.h
index 683ef3272dddf6f65a52730493bf7a3d12b77c4d..cd99ddad430902d1403c0b2e1752c15fa4f21722 100644
--- a/metal/paddle-mobile-demo/paddle-mobile-demo/OCInterface/PaddleMobileGPU.h
+++ b/metal/paddle-mobile-demo/paddle-mobile-demo/OCInterface/PaddleMobileGPU.h
@@ -26,6 +26,8 @@ typedef enum : NSUInteger {
 
 @property (assign, nonatomic) int outputSize;
 
+@property (strong, nonatomic) NSArray <NSNumber *>*dim;
+
 -(void)releaseOutput;
 
 @end
@@ -88,13 +90,13 @@ typedef enum : NSUInteger {
  * texture:     需要进行预测的图像转换的 texture
  * completion:  预测完成回调
  */
--(void)predict:(id<MTLTexture>)texture withCompletion:(void (^)(BOOL, NSArray<NSNumber *> *))completion;
+-(void)predict:(id<MTLTexture>)texture withCompletion:(void (^)(BOOL, NSArray<NSArray <NSNumber *>*> *))completion;
 
 /*
  * texture:     需要进行预测的图像转换的 texture
  * completion:  预测完成回调
  */
--(void)predict:(id<MTLTexture>)texture withResultCompletion:(void (^)(BOOL, PaddleMobileGPUResult *))completion;
+-(void)predict:(id<MTLTexture>)texture withResultCompletion:(void (^)(BOOL, NSArray <PaddleMobileGPUResult *> *))completion;
 
 /*
  * 清理内存
diff --git a/metal/paddle-mobile-demo/paddle-mobile-demo/OCInterface/PaddleMobileGPU.m b/metal/paddle-mobile-demo/paddle-mobile-demo/OCInterface/PaddleMobileGPU.m
index 7625788b534a0c4f4dedb4664efe8b47f6bb1eb3..3a58db2988f8ba70a02d96f4e7e92b49d61305bd 100644
--- a/metal/paddle-mobile-demo/paddle-mobile-demo/OCInterface/PaddleMobileGPU.m
+++ b/metal/paddle-mobile-demo/paddle-mobile-demo/OCInterface/PaddleMobileGPU.m
@@ -66,24 +66,34 @@
   return [runner load];
 }
 
--(void)predict:(id<MTLTexture>)texture withCompletion:(void (^)(BOOL, NSArray<NSNumber *> *))completion {
+-(void)predict:(id<MTLTexture>)texture withCompletion:(void (^)(BOOL, NSArray<NSArray <NSNumber *>*> *))completion {
   
-  [runner predictWithTexture:texture completion:^(BOOL success, ResultHolder * _Nullable result) {
-    NSMutableArray<NSNumber *> *resultArray = [NSMutableArray arrayWithCapacity:result.capacity];
-    for (int i = 0; i < result.capacity; ++i) {
-      [resultArray addObject:[NSNumber numberWithFloat:result.result[i]]];
+  [runner predictWithTexture:texture completion:^(BOOL success, NSArray<ResultHolder *> * _Nullable resultArr) {
+    NSMutableArray<NSMutableArray <NSNumber *>*> *ocResultArray = [NSMutableArray arrayWithCapacity:resultArr.count];
+    for (int i = 0; i < resultArr.count; ++i) {
+      ResultHolder *resultHolder = resultArr[i];
+      NSMutableArray <NSNumber *>*res = [NSMutableArray arrayWithCapacity:resultHolder.capacity];
+      for (int j = 0; j < resultHolder.capacity; ++j) {
+        [res addObject:[NSNumber numberWithFloat:resultHolder.result[i]]];
+      }
+      [ocResultArray addObject:res];
+      [resultHolder releasePointer];
     }
-    completion(success, resultArray);
-    [result releasePointer];
-    
+    completion(success, ocResultArray);
   }];
 }
 
--(void)predict:(id<MTLTexture>)texture withResultCompletion:(void (^)(BOOL, PaddleMobileGPUResult *))completion {
-  [runner predictWithTexture:texture completion:^(BOOL success, ResultHolder * _Nullable result) {
-    PaddleMobileGPUResult *gpuResult = [[PaddleMobileGPUResult alloc] init];
-    [gpuResult setOutputResult:result];
-    completion(success, gpuResult);
+-(void)predict:(id<MTLTexture>)texture withResultCompletion:(void (^)(BOOL, NSArray <PaddleMobileGPUResult *> *))completion {
+  [runner predictWithTexture:texture completion:^(BOOL success, NSArray<ResultHolder *> * _Nullable resultArr) {
+    NSMutableArray <PaddleMobileGPUResult *> *ocResultArr = [NSMutableArray arrayWithCapacity:resultArr.count];
+    for (int i = 0; i < resultArr.count; ++i) {
+      ResultHolder *result = resultArr[i];
+      PaddleMobileGPUResult *gpuResult = [[PaddleMobileGPUResult alloc] init];
+      gpuResult.dim = result.dim;
+      [gpuResult setOutputResult:result];
+      [ocResultArr addObject:gpuResult];
+    }
+    completion(success, ocResultArr);
   }];
 }
 
diff --git a/metal/paddle-mobile-demo/paddle-mobile-demo/OCInterface/SuperResolutionNet.swift b/metal/paddle-mobile-demo/paddle-mobile-demo/OCInterface/SuperResolutionNet.swift
index 284612a04df57ffae78d59827547d8d26826b019..8745efaed04a09f2d92bc2c1bcbc639ec261297d 100644
--- a/metal/paddle-mobile-demo/paddle-mobile-demo/OCInterface/SuperResolutionNet.swift
+++ b/metal/paddle-mobile-demo/paddle-mobile-demo/OCInterface/SuperResolutionNet.swift
@@ -16,7 +16,7 @@ import Foundation
 import paddle_mobile
 
 @objc public class SuperResolutionNet: Net{
-  override public func resultStr(res: ResultHolder) -> String {
+  override public func resultStr(res: [ResultHolder]) -> String {
     return "未实现"
   }
   
diff --git a/metal/paddle-mobile-demo/paddle-mobile-demo/ViewController.swift b/metal/paddle-mobile-demo/paddle-mobile-demo/ViewController.swift
index 5d40da577121ffb7c6481831efe7b11e36696d81..612a986d85994a03f45b3f6641e1851784d35787 100644
--- a/metal/paddle-mobile-demo/paddle-mobile-demo/ViewController.swift
+++ b/metal/paddle-mobile-demo/paddle-mobile-demo/ViewController.swift
@@ -147,7 +147,8 @@ class ViewController: UIViewController {
             fatalError()
           }
           
-          if success, let inResultHolder = resultHolder {
+          if success, let inResultHolderArr = resultHolder {
+            let inResultHolder = inResultHolderArr[0]
             if i == max - 1 {
               let time = Date.init().timeIntervalSince(startDate)
             
@@ -160,7 +161,7 @@ class ViewController: UIViewController {
           }
           
           DispatchQueue.main.async {
-            resultHolder?.releasePointer()
+            resultHolder?.first?.releasePointer()
           }
         }
       }
@@ -272,7 +273,7 @@ extension ViewController: VideoCaptureDelegate{
     runner.scaleTexture(input: texture) { (scaledTexture) in
       self.runner.predict(texture: scaledTexture, completion: { (success, resultHolder) in
         //        print(resultHolder!.result![0])
-        resultHolder?.releasePointer()
+        resultHolder?.first?.releasePointer()
       })
     }
   }
diff --git a/metal/paddle-mobile/paddle-mobile/API/Net.swift b/metal/paddle-mobile/paddle-mobile/API/Net.swift
index 6eb7732410a54829c2633bc6cb3449ef25b5ec9d..cc8a4c6ca2c132de3a96555f9c360c932fa12142 100644
--- a/metal/paddle-mobile/paddle-mobile/API/Net.swift
+++ b/metal/paddle-mobile/paddle-mobile/API/Net.swift
@@ -71,17 +71,20 @@ import Foundation
     super.init()
   }
   
-  @objc open func resultStr(res: ResultHolder) -> String {
+  @objc open func resultStr(res: [ResultHolder]) -> String {
     fatalError()
   }
   
-  @objc open func fetchResult(paddleMobileRes: GPUResultHolder) -> ResultHolder {
-    guard let inResPointer = paddleMobileRes.resultPointer else {
-      fatalError()
+  @objc open func fetchResult(paddleMobileRes: [GPUResultHolder]) -> [ResultHolder] {
+    return paddleMobileRes.map { (gpuRes) -> ResultHolder in
+      guard let inResPointer = gpuRes.resultPointer else {
+        fatalError()
+      }
+      return ResultHolder.init(inResult: inResPointer, inCapacity: paddleMobileRes.capacity, inDim: gpuRes.dim)
     }
-    return ResultHolder.init(inResult: inResPointer, inCapacity: paddleMobileRes.capacity)
   }
   
   open func updateProgram(program: Program) {
   }
+  
 }
diff --git a/metal/paddle-mobile/paddle-mobile/API/Runner.swift b/metal/paddle-mobile/paddle-mobile/API/Runner.swift
index b4b7403ec8d0f6086eca373ffca34cee33545c94..2d7bf9d190fcc99dd3932915d6a523098b94b3f7 100644
--- a/metal/paddle-mobile/paddle-mobile/API/Runner.swift
+++ b/metal/paddle-mobile/paddle-mobile/API/Runner.swift
@@ -18,10 +18,12 @@ import Foundation
 @objc public class ResultHolder: NSObject {
   @objc public let result: UnsafeMutablePointer<Float32>
   @objc public let capacity: Int
+  @objc public let dim: [Int]
   
-  init(inResult: UnsafeMutablePointer<Float32>, inCapacity: Int) {
+  init(inResult: UnsafeMutablePointer<Float32>, inCapacity: Int, inDim: [Int]) {
     result = inResult
     capacity = inCapacity
+    dim = inDim
   }
   
   @objc public func releasePointer() {
@@ -99,7 +101,7 @@ import Foundation
   /// - Parameters:
   ///   - texture: 输入 texture 需要使用 getTexture 获得
   ///   - completion: 结果回调， 当 success 为 true 时 result 不为 nil
-  @objc public func predict(texture: MTLTexture, completion: @escaping ( _ success: Bool, _ result: ResultHolder?) -> Void) {
+  @objc public func predict(texture: MTLTexture, completion: @escaping ( _ success: Bool, _ result: [ResultHolder]?) -> Void) {
     do {
       try self.executor?.predict(input: texture, dim: self.net.inputDim, completionHandle: { [weak self] (res) in
         guard let SSelf = self else {
diff --git a/metal/paddle-mobile/paddle-mobile/Src/Framework/Executor.swift b/metal/paddle-mobile/paddle-mobile/Src/Framework/Executor.swift
index ec29df04e72794709da1cce18f7f8e13da6b2af8..8f02bf17bcf0eed9e6b7a7bcb524cf6d18aa49fa 100644
--- a/metal/paddle-mobile/paddle-mobile/Src/Framework/Executor.swift
+++ b/metal/paddle-mobile/paddle-mobile/Src/Framework/Executor.swift
@@ -69,7 +69,7 @@ public class Executor<P: PrecisionType> {
     }
   }
   
-  public func predict(input: MTLTexture, dim: Dim, completionHandle: @escaping (GPUResultHolder) -> Void, preProcessKernle: CusomKernel? = nil, except: Int = 0) throws {
+  public func predict(input: MTLTexture, dim: Dim, completionHandle: @escaping ([GPUResultHolder]) -> Void, preProcessKernle: CusomKernel? = nil, except: Int = 0) throws {
     inflightSemaphore.wait()
 
     guard let buffer = queue.makeCommandBuffer() else {
@@ -135,7 +135,7 @@ public class Executor<P: PrecisionType> {
         resultHolder = GPUResultHolder.init(inDim: output.dim.dims, inPointer: output.result, inCapacity: output.capacity)
       }
       
-      completionHandle(resultHolder)
+      completionHandle([resultHolder])
       SSelf.inflightSemaphore.signal()
     }